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Aki Olavi Virkkula

19952019
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Publications 1995 2019

  • 74 Article
  • 40 Conference contribution
  • 4 Conference article
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2019

Interactions between the atmosphere, cryosphere, and ecosystems at northern high latitudes

Boy, M., Thomson, E. S., Acosta Navarro, J-C., Arnalds, O., Batchvarova, E., Bäck, J., Berninger, F., Bilde, M., Brasseur, Z., Dagsson-Waldhauserova, P., Castarède, D., Dalirian, M., de Leeuw, G., Dragosics, M., Duplissy, E-M., Duplissy, J., Ekman, A. M. L., Fang, K., Gallet, J-C., Glasius, M. & 43 othersGryning, S-E., Grythe, H., Hansson, H-C., Hansson, M., Isaksson, E., Iversen, T., Jonsdottir, I., Kasurinen, V., Kirkevåg, A., Korhola, A., Krejci, R., Kristjansson, J. E., Lappalainen, H. K., Lauri, A., Leppäranta, M., Lihavainen, H., Makkonen, R., Massling, A., Meinander, O., Nilsson, E. D., Olafsson, H., Pettersson, J. B. C., Prisle, N. L., Riipinen, I., Roldin, P., Ruppel, M., Salter, M., Sand, M., Seland, Ø., Seppä, H., Skov, H., Soares, J., Stohl, A., Ström, J., Svensson, J., Swietlicki, E., Tabakova, K., Thorsteinsson, T., Virkkula, A., Weyhenmeyer, G. A., Wu, Y., Zieger, P. & Kulmala, M., 14 Feb 2019, In : Atmospheric Chemistry and Physics. 19, 3, p. 2015-2061 47 p.

Research output: Contribution to journalArticleScientificpeer-review

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2018

Aerosol optical properties at SORPES in Nanjing, east China

Shen, Y., Virkkula, A., Ding, A., Wang, J., Chi, X., Nie, W., Qi, X., Huang, X., Liu, Q., Zheng, L., Xu, Z., Petäjä, T., Aalto, P. P., Fu, C. & Kulmala, M., 18 Apr 2018, In : Atmospheric Chemistry and Physics. 18, 8, p. 5265-5292 28 p.

Research output: Contribution to journalArticleScientificpeer-review

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A European aerosol phenomenology-6: scattering properties of atmospheric aerosol particles from 28 ACTRIS sites

Pandolfi, M., Alados-Arboledas, L., Alastuey, A., Andrade, M., Angelov, C., Artinano, B., Backman, J., Baltensperger, U., Bonasoni, P., Bukowiecki, N., Coen, M. C., Conil, S., Coz, E., Crenn, V., Dudoitis, V., Ealo, M., Eleftheriadis, K., Favez, O., Fetfatzis, P., Fiebig, M. & 40 othersFlentje, H., Ginot, P., Gysel, M., Henzing, B., Hoffer, A., Smejkalova, A. H., Kalapov, I., Kalivitis, N., Kouvarakis, G., Kristensson, A., Kulmala, M., Lihavainen, H., Lunder, C., Luoma, K., Lyamani, H., Marinoni, A., Mihalopoulos, N., Moerman, M., Nicolas, J., O'Dowd, C., Petäjä, T., Petit, J-E., Pichon, J. M., Prokopciuk, N., Putaud, J-P., Rodriguez, S., Sciare, J., Sellegri, K., Swietlicki, E., Titos, G., Tuch, T., Tunved, P., Ulevicius, V., Vaishya, A., Vana, M., Virkkula, A., Vratolis, S., Weingartner, E., Wiedensohler, A. & Laj, P., 5 Jun 2018, In : Atmospheric Chemistry and Physics. 18, 11, p. 7877-7911 35 p.

Research output: Contribution to journalArticleScientificpeer-review

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Amines in boreal forest air at SMEAR II station in Finland

Hemmilä, M., Hellén, H., Virkkula, A., Makkonen, U., Praplan, A. P., Kontkanen, J., Ahonen, L., Kulmala, M. & Hakola, H., 4 May 2018, In : Atmospheric Chemistry and Physics. 18, 9, p. 6367-6380 14 p.

Research output: Contribution to journalArticleScientificpeer-review

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Ion-induced sulfuric acid-ammonia nucleation drives particle formation in coastal Antarctica

Jokinen, T., Sipilä, M., Kontkanen, J., Vakkari, V., Tisler, P., Duplissy, E-M., Junninen, H., Kangasluoma, J., Manninen, H. E., Petäjä, T., Kulmala, M., Worsnop, D. R., Kirkby, J., Virkkula, A. & Kerminen, V-M., Nov 2018, In : Science Advances. 4, 11, 6 p., 9744.

Research output: Contribution to journalArticleScientificpeer-review

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2017

Features in air ions measured by an air ion spectrometer (AIS) at Dome C

Chen, X., Virkkula, A., Kerminen, V-M., Manninen, H. E., Busetto, M., Lanconelli, C., Lupi, A., Vitale, V., Del Guasta, M., Grigioni, P., Väänänen, R., Duplissy, E-M., Petäjä, T. & Kulmala, M., 20 Nov 2017, In : Atmospheric Chemistry and Physics. 17, 22, p. 13783-13800 18 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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Observations of aerosol optical properties at a coastal site in Hong Kong, South China

Wang, J., Virkkula, A., Gao, Y., Lee, S., Shen, Y., Chi, X., Nie, W., Liu, Q., Xu, Z., Huang, X., Wang, T., Cui, L. & Ding, A., 22 Feb 2017, In : Atmospheric Chemistry and Physics. 17, 4, p. 2653-2671 19 p.

Research output: Contribution to journalArticleScientificpeer-review

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On Aethalometer measurement uncertainties and an instrument correction factor for the Arctic

Backman, J., Schmeisser, L., Virkkula, A., Ogren, J. A., Asmi, E., Starkweather, S., Sharma, S., Eleftheriadis, K., Uttal, T., Jefferson, A., Bergin, M., Makshtas, A., Tunved, P. & Fiebig, M., 21 Dec 2017, In : Atmospheric Measurement Techniques. 10, 12, p. 5039-5062 24 p.

Research output: Contribution to journalArticleScientificpeer-review

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The Impacts of Emission Control and Regional Transport on PM2.5 Ions and Carbon Components in Nanjing during the 2014 Nanjing Youth Olympic Games

Zhou, D., Li, B., Huang, X., Virkkula, A., Wu, H., Zhao, Q., Zhang, J., Liu, Q., Li, L., Li, C., Chen, F., Yuan, S., Qiao, Y., Shen, G. & Ding, A., Mar 2017, In : Aerosol and Air Quality Research. 17, 3, p. 730-740 11 p.

Research output: Contribution to journalArticleScientificpeer-review

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2016

Enhanced haze pollution by black carbon in megacities in China

Ding, A. J., Huang, X., Nie, W., Sun, J. N., Kerminen, V. -M., Petäjä, T., Su, H., Cheng, Y. F., Yang, X. -Q., Wang, M. H., Chi, X. G., Wang, J. P., Virkkula, A., Guo, W. D., Yuan, J., Wang, S. Y., Zhang, R. J., Wu, Y. F., Song, Y., Zhu, T. & 3 othersZilitinkevich, S., Kulmala, M. & Fu, C. B., 28 Mar 2016, In : Geophysical Research Letters. 43, 6, p. 2873-2879 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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Soot-doped natural snow and its albedo - results from field experiments

Svensson, J., Virkkula, A., Meinander, O., Kivekäs, N., Hannula, H-R., Järvinen, O., Peltoniemi, J. I., Gritsevich, M., Heikkila, A., Kontu, A., Neitola, K., Brus, D., Dagsson-Waldhauserova, P., Anttila, K., Vehkamäki, M., Hienola, A., De Leeuw, G. & Lihavainen, H., 2016, In : Boreal Environment Research. 21, 5-6, p. 481-503 23 p.

Research output: Contribution to journalArticleScientificpeer-review

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2015

Aerosol size distribution and new particle formation in the western Yangtze River Delta of China: 2 years of measurements at the SORPES station

Qi, X. M., Ding, A. J., Nie, W., Petäjä, T., Kerminen, V. -M., Herrmann, E., Xie, Y. N., Zheng, L. F., Manninen, H., Aalto, P., Sun, J. N., Xu, Z. N., Chi, X. G., Huang, X., Boy, M., Virkkula, A., Yang, X. -Q., Fu, C. B. & Kulmala, M., 2015, In : Atmospheric Chemistry and Physics. 15, 21, p. 12445-12464 20 p.

Research output: Contribution to journalArticleScientificpeer-review

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Enhanced sulfate formation by nitrogen dioxide: Implications from in situ observations at the SORPES station

Xie, Y., Ding, A., Nie, W., Mao, H., Qi, X., Huang, X., Xu, Z., Kerminen, V-M., Petäjä, T., Chi, X., Virkkula, A., Boy, M., Xue, L., Guo, J., Sun, J., Yang, X., Kulmala, M. & Fu, C., 27 Dec 2015, In : Journal of Geophysical Research : Atmospheres. 120, 24, p. 12679-12694 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Mobile ground-based measurements of aerosol and trace gases during a prescribed burning experiment in boreal forest in Finland

Pirjola, L., Virkkula, A., Petäjä, T., Levula, J., Kukkonen, J. & Kulmala, M., 27 Feb 2015, In : Boreal Environment Research. 20, 1, p. 105-119 15 p.

Research output: Contribution to journalArticleScientificpeer-review

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On the interpretation of the loading correction of the aethalometer

Virkkula, A., Chi, X., Ding, A., Shen, Y., Nie, W., Qi, X., Zheng, L., Huang, X., Xie, Y., Wang, J., Petäjä, T. & Kulmala, M., 2015, In : Atmospheric Measurement Techniques. 8, 10, p. 4415-4427 13 p.

Research output: Contribution to journalArticleScientificpeer-review

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2014

Airborne measurements of aerosols and carbon dioxide during a prescribed fire experiment at a boreal forest site

Virkkula, A., Pohja, T., Aalto, P. P., Keronen, P., Schobesberger, S., Clements, C. B., Petäjä, T., Nikmo, J. & Kulmala, M., Sep 2014, In : Boreal Environment Research. 19, B, p. 153-181 29 p.

Research output: Contribution to journalArticleScientificpeer-review

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Applicability of an integrated plume rise model for the dispersion from wild-land fires

Kukkonen, J., Nikmo, J., Sofiev, M., Riikonen, K., Petäjä, T., Virkkula, A., Levula, J., Schobesberger, S. & Webber, D. M., 2014, In : Geoscientific Model Development. 7, 6, p. 2663-2681 19 p.

Research output: Contribution to journalArticleScientificpeer-review

Biomass-burning smoke episodes in Finland from eastern European wildfires

Leino, K., Riuttanen, L., Nieminen, T., Dal Maso, M., Väänänen, R., Pohja, T., Keronen, P., Järvi, L., Aalto, P. P., Virkkula, A., Kerminen, V-M., Petäjä, T. & Kulmala, M., 30 Sep 2014, In : Boreal Environment Research. 19, p. 275-292 17 p.

Research output: Contribution to journalArticleScientificpeer-review

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Brief communication: Light-absorbing impurities can reduce the density of melting snow

Meinander, O., Kontu, A., Virkkula, A., Arola, A., Backman, L., Dagsson-Waldhauserova, P., Jarvinen, O., Manninen, T., Svensson, J., de Leeuw, G. & Lepparanta, M., 2014, In : Cryosphere. 8, 3, p. 991-995 5 p.

Research output: Contribution to journalArticleScientificpeer-review

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Constrained two-stream algorithm for calculating aerosol light absorption coefficient from the Particle Soot Absorption Photometer

Müller, T., Virkkula, A. & Ogren, J. A., 2014, In : Atmospheric Measurement Techniques. 7, 12, p. 4049-4070 22 p.

Research output: Contribution to journalArticleScientificpeer-review

Differences in aerosol absorption Angstrom exponents between correction algorithms for a particle soot absorption photometer measured on the South African Highveld

Backman, J., Virkkula, A., Vakkari, V., Beukes, J. P., Van Zyl, P. G., Josipovic, M., Piketh, S., Tiitta, P., Chiloane, K., Petäjä, T., Kulmala, M. & Laakso, L., 2014, In : Atmospheric Measurement Techniques. 7, 12, p. 4285-4298 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Differences in aerosol absorption Ångström exponents between correction algorithms for particle soot absorption photometer measured on South African Highveld

Backman, J. C. G., Virkkula, A. O., Vakkari, V., Beukes, P., van Zyl, P., Josipovic, M., Piketh, S., Tiitta, P., Chiloane, K., Petaja, T., Kulmala, M. & Laakso, L., 19 Sep 2014, In : Atmospheric Measurement Techniques Discussions. 7, 9, p. 9733-9769 37 p.

Research output: Contribution to journalArticleScientificpeer-review

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Optical and Chemical Characterization of Aerosols Emitted from Coal, Heavy and Light Fuel Oil, and Small-Scale Wood Combustion

Frey, A. K., Saarnio, K., Lamberg, H., Myllari, F., Karjalainen, P., Teinilä, K., Carbone, S., Tissari, J., Niemela, V., Häyrinen, A., Rautiainen, J., Kytömäki, J., Artaxo, P., Virkkula, A., Pirjola, L., Rönkkö, T., Keskinen, J., Jokiniemi, J. & Hillamo, R., 7 Jan 2014, In : Environmental Science & Technology. 48, 1, p. 827-836 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Prescribed burning of logging slash in the boreal forest of Finland: emissions and effects on meteorological quantities and soil properties

Virkkula, A., Levula, J., Pohja, T., Aalto, P. P., Keronen, P., Schobesberger, S., Clements, C. B., Pirjola, L., Kieloaho, A. -J., Kulmala, L., Aaltonen, H., Patokoski, J., Pumpanen, J., Rinne, J., Ruuskanen, T., Pihlatie, M., Manninen, H. E., Aaltonen, V., Junninen, H., Petaja, T. & 16 othersBackman, J., Dal Maso, M., Nieminen, T., Olsson, T., Gronholm, T., Aalto, J., Virtanen, T. H., Kajos, M., Kerminen, V. -M., Schultz, D. M., Kukkonen, J., Sofiev, M., De Leeuw, G., Back, J., Hari, P. & Kulmala, M., 2014, In : Atmospheric Chemistry and Physics. 14, 9, p. 4473-4502 30 p.

Research output: Contribution to journalArticleScientificpeer-review

2013

Aerosol decadal trends - Part 1: In-situ optical measurements at GAW and IMPROVE stations

Coen, M. C., Andrews, E., Asmi, A., Baltensperger, U., Bukowiecki, N., Day, D., Fiebig, M., Fjaeraa, A. M., Flentje, H., Hyvärinen, A., Jefferson, A., Jennings, S. G., Kouvarakis, G., Lihavainen, H., Myhre, C. L., Malm, W. C., Mihapopoulos, N., Molenar, J. V., O'Dowd, C., Ogren, J. A. & 6 othersSchichtel, B. A., Sheridan, P., Virkkula, A., Weingartner, E., Weller, R. & Laj, P., 2013, In : Atmospheric Chemistry and Physics. 13, 2, p. 869-894 26 p.

Research output: Contribution to journalArticleScientificpeer-review

Airborne measurements over the boreal forest of southern Finland during new particle formation events in 2009 and 2010

Schobesberger, S., Väänänen, R., Leino, K., Virkkula, A. O., Backman, J. C. G., Pohja, T., Siivola, E., Franchin, A., Mikkilä, J., Paramonov, M., Aalto, P. P., Krejci, R., Petäjä, T. & Kulmala, M., 5 Apr 2013, In : Boreal Environment Research. 18, 2, p. 145-163 19 p.

Research output: Contribution to journalArticleScientificpeer-review

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Analysis of particle size distribution changes between three measurement sites in northern Scandinavia

Väänänen, R., Kyrö, E-M., Nieminen, T., Kivekäs, N., Junninen, H., Virkkula, A. O., Dal Maso, M., Lihavainen, H., Viisanen, Y., Svenningsson, B., Holst, T., Arneth, A., Aalto, P. P., Kulmala, M. & Kerminen, V-M., 2013, In : Atmospheric Chemistry and Physics. 13, 23, p. 11887-11903 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Antarctic new particle formation from continental biogenic precursors

Kyrö, E. -M., Kerminen, V. -M., Virkkula, A., Dal Maso, M., Parshintsev, J., Ruiz-Jimenez, J., Forsström, L., Manninen, H. E., Riekkola, M. -L., Heinonen, P. & Kulmala, M., 2013, In : Atmospheric Chemistry and Physics. 13, 7, p. 3527-3546 20 p.

Research output: Contribution to journalArticleScientificpeer-review

Seasonal cycle and modal structure of particle number size distribution at Dome C, Antarctica

Järvinen, E., Virkkula, A., Nieminen, T., Aalto, P. P., Asmi, E., Lanconelli, C., Busetto, M., Lupi, A., Schioppo, R., Vitale, V., Mazzola, M., Petäjä, T., Kerminen, V-M. & Kulmala, M., 2013, In : Atmospheric Chemistry and Physics. 13, 15, p. 7473-7487 15 p.

Research output: Contribution to journalArticleScientificpeer-review

2012

Antarctic new particle formation from continental biogenic precursors

Kyrö, E-M., Kerminen, V-M., Virkkula, A. O., Dal Maso, M., Parshintsev, J., Ruiz-Jimenez, J., Forsström, L., Manninen, H. E., Riekkola, M-L., Heinonen, P. & Kulmala, M., 19 Dec 2012, In : Atmospheric Chemistry and Physics Discussions. 2012, 12, p. 32741-32794 54 p.

Research output: Contribution to journalArticleScientific

Evaluation of sun photometer capabilities for retrievals of aerosol optical depth at high latitudes: The POLAR-AOD intercomparison campaigns

Mazzola, M., Stone, R. S., Herber, A., Tomasi, C., Lupi, A., Vitale, V., Lanconelli, C., Toledano, C., Cachorro, V. E., O'Neill, N. T., Shiobara, M., Aaltonen, V., Stebel, K., Zielinski, T., Petelski, T., Ortiz de Galisteo, J. P., Torres, B., Berjon, A., Goloub, P., Li, Z. & 6 othersBlarel, L., Abboud, I., Cuevas, E., Stock, M., Schulz, K. -H. & Virkkula, A., 2012, In : Atmospheric Environment. 52, p. 4-17 14 p.

Research output: Contribution to journalArticleScientificpeer-review

In-situ observations of Eyjafjallajokull ash particles by hot-air balloon

Petaja, T., Laakso, L., Gronholm, T., Launiainen, S., Evele-Peltoniemi, I., Virkkula, A., Leskinen, A., Backman, J., Manninen, H. E., Sipila, M., Haapanala, S., Hameri, K., Vanhala, E., Tuomi, T., Paatero, J., Aurela, M., Hakola, H., Makkonen, U., Hellen, H., Hillamo, R. & 9 othersVira, J., Prank, M., Sofiev, M., Siitari-Kauppi, M., Laaksonen, A., Iehtinen, K. E. J., Kulmala, M., Viisanen, Y. & Kerminen, V. -M., 2012, In : Atmospheric Environment. 48, p. 104-112 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Long-term volatility measurements of submicron atmospheric aerosol in Hyytiala, Finland

Häkkinen, S., Aijala, M., Lehtipalo, K., Junninen, H., Backman, J., Virkkula, A., Nieminen, T., Vestenius, M., Hakola, H., Ehn, M., Worsnop, D. R., Kulmala, M., Petaja, T. & Riipinen, I., 2012, In : Atmospheric Chemistry and Physics. 12, 22, p. 10771-10786 16 p.

Research output: Contribution to journalArticleScientificpeer-review

On the diurnal cycle of urban aerosols, black carbon and the occurrence of new particle formation events in springtime São Paulo, Brazil

Backman, J., Rizzo, L., Hakala, J., Nieminen, T., Manninen, H. E., Morais, F., Aalto, P. P., Siivola, E., Carbone, S., Hillamo, R., Artaxo, P., Virkkula, A., Petäjä, T. & Kulmala, M., 11 Dec 2012, In : Atmospheric Chemistry and Physics. 12, 23, p. 11733-11751 19 p.

Research output: Contribution to journalArticleScientificpeer-review

Semi-continuous gas and inorganic aerosol measurements at a Finnish urban site: comparisons with filters, nitrogen in aerosol and gas phases, and aerosol acidity

Makkonen, U., Virkkula, A., Mantykentta, J., Hakola, H., Keronen, P., Vakkari, V. & Aalto, P. P., 2012, In : Atmospheric Chemistry and Physics. 12, 12, p. 5617-5631 15 p.

Research output: Contribution to journalArticleScientificpeer-review

South African EUCAARI measurements: seasonal variation of trace gases and aerosol optical properties

Laakso, L., Vakkari, V., Virkkula, A., Laakso, H., Backman, J. C. G., Kulmala, M., Beukes, J. P., van Zyl, P. G., Tiitta, P., Josipovic, M., Pienaar, J. J., Chiloane, K., Gilardoni, S., Vignati, E., Wiedensohler, A., Tuch, T., Birmili, W., Piketh, S., Collett, K., Fourie, G. D. & 4 othersKomppula, M., Lihavainen, H., de Leeuw, G. & Kerminen, V. -M., 2012, In : Atmospheric Chemistry and Physics. 12, 4, p. 1847-1864 18 p.

Research output: Contribution to journalArticleScientificpeer-review

Summer concentrations of NMHCs in ambient air of the Arctic and Antarctic

Hellén, H., Leck, C., Paatero, J., Virkkula, A. & Hakola, H., 28 Sep 2012, In : Boreal Environment Research. 17, 5, p. 385-397 13 p.

Research output: Contribution to journalArticleScientificpeer-review

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Aerosol black carbon at five background measurement sites over Finland, a gateway to the Arctic

Hyvarinen, A. -P., Kolmonen, P., Kerminen, V. -M., Virkkula, A., Leskinen, A., Komppula, M., Hatakka, J., Burkhart, J., Stohl, A., Aalto, P., Kulmala, M., Lehtinen, K. E. J., Viisanen, Y. & Lihavainen, H., 2011, In : Atmospheric Environment. 45, p. 4042-4050 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Below-cloud scavenging of aerosol particles by snow at an urban site in Finland

Paramonov, M., Grönholm, T. & Virkkula, A. O., 2011, In : Boreal Environment Research. 16, 4, p. 304-320 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Characterization and intercomparison of aerosol absorption photometers: result of two intercomparison workshops

Mueller, T., Henzing, J. S., de Leeuw, G., Wiedensohler, A., Alastuey, A., Angelov, H., Bizjak, M., Coen, M. C., Engstrom, J. E., Gruening, C., Hillamo, R., Hoffer, A., Imre, K., Ivanow, P., Jennings, G., Sun, J. Y., Kalivitis, N., Karlsson, H., Komppula, M., Laj, P. & 19 othersLi, S-M., Lunder, C., Marinoni, A., dos Santos, S. M., Moerman, M., Nowak, A., Ogren, J. A., Petzold, A., Pichon, J. M., Rodriquez, S., Sharma, S., Sheridan, P. J., Teinila, K., Tuch, T., Viana, M., Virkkula, A., Weingartner, E., Wilhelm, R. & Wang, Y. Q., 2011, In : Atmospheric Measurement Techniques. 4, p. 245-268 24 p.

Research output: Contribution to journalArticleScientificpeer-review

Seasonal cycle, size dependencies, and source analyses of aerosol optical properties at the SMEAR II measurement station in Hyytiala, Finland

Virkkula, A., Backman, J., Aalto, P. P., Hulkkonen, M., Riuttanen, L., Nieminen, T., dal Maso, M., Sogacheva, L., de Leeuw, G. & Kulmala, M., 2011, In : Atmospheric Chemistry and Physics. 11, 9, p. 4445-4468 24 p.

Research output: Contribution to journalArticleScientificpeer-review

2010

Correction of the calibration of the 3-wavelength Particle Soot Absorption Photometer (3λ PSAP)

Virkkula, A. O., Jul 2010, In : Aerosol Science and Technology. 44, p. 706-712 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Hygroscopicity and chemical composition of Antarctic sub-micrometre aerosol particles and observations of new particle formation

Asmi, E., Frey, A., Virkkula, A., Ehn, M., Manninen, H. E., Timonen, H., Tolonen-Kivimaki, O., Aurela, M., Hillamo, R. & Kulmala, M., 2010, In : Atmospheric Chemistry and Physics. 10, p. 4253-4271 19 p.

Research output: Contribution to journalArticleScientificpeer-review

Impacts of volatilisation on light scattering and filter-based absorption measurements: a case study

Backman, J. C. G., Virkkula, A. O., Petäjä, T., Aurela, M., Frey, A. & Hillamo, R., 2010, In : Atmospheric Measurement Techniques. 3, 5, p. 1205-1216 12 p.

Research output: Contribution to journalArticleScientificpeer-review

South African EUCAARI – measurements: a site with high atmospheric variability

Laakso, L., Vakkari, V., Laakso, H., Virkkula, A. O., Kulmala, M. & Kerminen, V-M., 2010, In : Atmospheric Chemistry and Physics Discussions. 10, p. 30691-30729

Research output: Contribution to journalArticleScientific

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2009

Review of Aerosol Research at the Finnish Antarctic Research Station Aboa and its Surroundings in Queen Maud Land, Antarctica

Virkkula, A. O., Asmi, E., Teinilä, K., Frey, A., Aurela, M., Timonen, H., Mäkelä, T., Samuli, A., Hillamo, R., Aalto, P. P., Kirkwood, S. & Kulmala, M., 2009, In : Geophysica. 45, p. 163-181 19 p.

Research output: Contribution to journalArticleScientificpeer-review

Saharan dust absorption and refractive index from aircraft-based observations during SAMUM 2006

Petzold, A., Rasp, K., Weinzierl, B., Esselborn, M., Hamburger, T., Doernbrack, A., Kandler, K., Schuetz, L., Knippertz, P., Fiebig, M. & Virkkula, A., 2009, In : Tellus. Series B: Chemical and Physical Meteorology. 61, p. 118-130 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Snow scavenging of ultrafine particles: field measurements and parameterization

Kyrö, E-M., Grönholm, T., Vuollekoski, H. J., Virkkula, A. O., Kulmala, M. & Laakso, L., 31 Aug 2009, In : Boreal Environment Research. 14, 4, p. 527-538 12 p.

Research output: Contribution to journalArticleScientificpeer-review